Evaluation of Nitrogen Fertilization Patterns Using DSSAT for Enhancing Grain Yield and Nitrogen Use Efficiency in Rice

Prasad, Laxmi R; Mailapalli, Damodhara Rao

doi:10.1080/00103624.2018.1464180

Cited by 10 publications

(3 citation statements)

References 31 publications

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“…N splits with basal at panicle initiation irrespective of N rates can increase yield [27,28]. A study has been conducted by Prasad et al (2018), revealed that four split (basal, tillering, panicle initiation and heading) limited the nitrate (NO 3 ) leaching loss from rice fields [29]. The adjusted splits could result in a reduction of fertilizer N input [30], splitting N can increase spikelet's per panicle, 1000 grain weight, ripened grain percentage and N uptake [31].…”

Section: Introductionmentioning

confidence: 99%

Optimizing Nitrogen Options for Improving Nitrogen Use Efficiency of Rice under Different Water Regimes

Hameed

Rahim

et al. 2019

Agronomy

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Major challenge in rice production is to achieve the goal of enhancing both food production and fertilizer use efficiency. Rice growth simulation model, ORYZA (v3) was used in the present study to evaluate the model under continuous flooded (CF) and alternate wetting and drying (AWD) regimes with different fertilizer nitrogen (N) rates with different N splits using a historical data of past 45 years. The model satisfactorily simulated crop biomass and nitrogen uptake at both irrigation regimes and fertilizers N rates and splits. The yield differences among the years were large due to climate change, but enhanced by N rates. The response of N curves was different at both water regimes. At 0 N rate, the slope for agronomic efficiency (AE) was high which tends to decrease with increase in N rates. With the one split basal application of N, lowest yield was found with high physiological efficiencies (PE), lowest fertilizer recoveries (RE) and lowest agronomic efficiency (AE). For both water applications and fertilizer levels, high yield with high nitrogen uptake, AE, RE and partial factor productivity (PFP) were witnessed high at four split (3:3:3:1), while having low physiological efficiency. The water productivity (irrigation + rainfall) WPI+R at basal in one N split for AWD at 150 kg N ha−1 was 1.19 kg m−3 and for CF was 0.82 kg m−3, whereas for 225 kg N ha−1 WPI+R of AWD was 1.50 kg m−3 and 1.14 kg m−3 for CF. In general, AWD exhibited high WPI+R with no rice yield penalty compared to CF. Splitting with the proper amount of fertilizer N resulted in good water productivity and nitrogen efficiencies, could lead to high rice yield.

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Section: Introductionmentioning

confidence: 99%

Optimizing Nitrogen Options for Improving Nitrogen Use Efficiency of Rice under Different Water Regimes

Hameed

Rahim

et al. 2019

Agronomy

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“…In this regard, several strategies for reducing the emissions GHGs from agriculture have been proposed. The number of methods employed to asse the NUE in different crop species are reported [125][126][127]. Of this number, various stra gies aiming at improving NUE have been implemented, and their efficiency varies w Although the mechanism of N acquisition, uptake, and assimilation by plants is well described [115,116], the molecular basis of NUE in plants has not been fully elucidated, and continues to be investigated.…”

Section: Enhancing Nitrogen Use Efficiency In Plantsmentioning

confidence: 99%

“…In this regard, several strategies for reducing the emissions of GHGs from agriculture have been proposed. The number of methods employed to assess the NUE in different crop species are reported [125][126][127]. Of this number, various strategies aiming at improving NUE have been implemented, and their efficiency varies with crop species [128][129][130][131][132][133][134].…”

Section: Enhancing Nitrogen Use Efficiency In Plantsmentioning

confidence: 99%

Mitigating Greenhouse Gas Emissions from Crop Production and Management Practices, and Livestock: A Review

Kabange,

Kwon,

Lee

et al. 2023

Sustainability

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Agriculture is the second most important greenhouse gas (GHG: methane (CH4) and nitrous oxide (N2O) emissions)-emitting sector after the energy sector. Agriculture is also recognized as the source and sink of GHGs. The share of agriculture to the global GHG emission records has been widely investigated, but the impact on our food production systems has been overlooked for decades until the recent climate crisis. Livestock production and feed, nitrogen-rich fertilizers and livestock manure application, crop residue burning, as well as water management in flood-prone cultivation areas are components of agriculture that produce and emit most GHGs. Although agriculture produces 72–89% less GHGs than other sectors, it is believed that reducing GHG emissions in agriculture would considerably lower its share of the global GHG emission records, which may lead to enormous benefits for the environment and food production systems. However, several diverging and controversial views questioning the actual role of plants in the current global GHG budget continue to nourish the debate globally. We must acknowledge that considering the beneficial roles of major GHGs to plants at a certain level of accumulation, implementing GHG mitigation measures from agriculture is indeed a complex task. This work provides a comprehensive review of agriculture-related GHG production and emission mechanisms, as well as GHG mitigation measures regarded as potential solutions available in the literature. This review also discusses in depth the significance and the dynamics of mitigation measures regarded as game changers with a high potential to enhance, in a sustainable manner, the resilience of agricultural systems. Some of the old but essential agricultural practices and livestock feed techniques are revived and discussed. Agricultural GHG mitigation approaches discussed in this work can serve as game changers in the attempt to reduce GHG emissions and alleviate the impact of climate change through sustainable agriculture and informed decision-making.

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Estimation of Crop Genetic Coefficients to Simulate Growth and Yield Under Changing Climate

Jha

Prasad²,

Araya³

et al. 2022

Global Agricultural Production: Resilience to Climate Change

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Evaluation of Nitrogen Fertilization Patterns Using DSSAT for Enhancing Grain Yield and Nitrogen Use Efficiency in Rice

Cited by 10 publications

References 31 publications

Optimizing Nitrogen Options for Improving Nitrogen Use Efficiency of Rice under Different Water Regimes

Optimizing Nitrogen Options for Improving Nitrogen Use Efficiency of Rice under Different Water Regimes

Mitigating Greenhouse Gas Emissions from Crop Production and Management Practices, and Livestock: A Review

Estimation of Crop Genetic Coefficients to Simulate Growth and Yield Under Changing Climate

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